Обновление Debian Squeeze до Stretch

делаешь apt-get update возвращает следующие ошибки:

Ign http://security.debian.org squeeze/updates Release.gpg
Ign http://security.debian.org/ squeeze/updates/contrib Translation-en
Ign http://security.debian.org/ squeeze/updates/contrib Translation-en_GB
Ign http://security.debian.org/ squeeze/updates/main Translation-en
Ign http://security.debian.org/ squeeze/updates/main Translation-en_GB
Ign http://security.debian.org/ squeeze/updates/non-free Translation-en
Ign http://security.debian.org/ squeeze/updates/non-free Translation-en_GB
Ign http://security.debian.org squeeze/updates Release
Ign http://security.debian.org squeeze/updates/main Sources
Ign http://security.debian.org squeeze/updates/contrib Sources
Ign http://security.debian.org squeeze/updates/non-free Sources
Ign http://security.debian.org squeeze/updates/main amd64 Packages
Ign http://security.debian.org squeeze/updates/contrib amd64 Packages
Ign http://security.debian.org squeeze/updates/non-free amd64 Packages
Err http://security.debian.org squeeze/updates/main Sources
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
Err http://security.debian.org squeeze/updates/contrib Sources
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
Err http://security.debian.org squeeze/updates/non-free Sources
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
Err http://security.debian.org squeeze/updates/main amd64 Packages
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
Err http://security.debian.org squeeze/updates/contrib amd64 Packages
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
Err http://security.debian.org squeeze/updates/non-free amd64 Packages
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
25% [Connecting to ftp.de.debian.org (141.76.2.4)]^C
root@ks3309152:/# nano /etc/apt/sources.list
root@ks3309152:/# nano /etc/apt/sources.list.backup
root@ks3309152:/# nano /etc/apt/sources.list
root@ks3309152:/# apt-get update
Ign http://debian.mirrors.ovh.net squeeze Release.gpg
Ign http://debian.mirrors.ovh.net/debian/ squeeze/main Translation-en
Ign http://security.debian.org squeeze/updates Release.gpg
Ign http://debian.mirrors.ovh.net/debian/ squeeze/main Translation-en_GB
Ign http://security.debian.org/ squeeze/updates/main Translation-en
Ign http://security.debian.org/ squeeze/updates/main Translation-en_GB
Ign http://debian.mirrors.ovh.net squeeze Release
Ign http://debian.mirrors.ovh.net squeeze/main Sources
Ign http://security.debian.org squeeze/updates Release
Ign http://debian.mirrors.ovh.net squeeze/main amd64 Packages
Ign http://security.debian.org squeeze/updates/main Sources
Ign http://security.debian.org squeeze/updates/main amd64 Packages
Err http://security.debian.org squeeze/updates/main Sources
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
Err http://security.debian.org squeeze/updates/main amd64 Packages
  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]
Err http://debian.mirrors.ovh.net squeeze/main Sources
  404  Not Found [IP: 2001:41d0:202:100:213:32:5:7 80]
Err http://debian.mirrors.ovh.net squeeze/main amd64 Packages
  404  Not Found [IP: 2001:41d0:202:100:213:32:5:7 80]
W: Failed to fetch http://debian.mirrors.ovh.net/debian/dists/squeeze/main/source/Sources.gz  404  Not Found [IP: 2001:41d0:202:100:213:32:5:7 80]

W: Failed to fetch http://debian.mirrors.ovh.net/debian/dists/squeeze/main/binary-amd64/Packages.gz  404  Not Found [IP: 2001:41d0:202:100:213:32:5:7 80]

W: Failed to fetch http://security.debian.org/dists/squeeze/updates/main/source/Sources.gz  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]

W: Failed to fetch http://security.debian.org/dists/squeeze/updates/main/binary-amd64/Packages.gz  404  Not Found [IP: 2001:a78:5:1:216:35ff:fe7f:6ceb 80]

E: Some index files failed to download, they have been ignored, or old ones used instead.

Я понимаю, что я нахожусь на 3 основных версиях от текущей, что мне нужно сделать отсюда, чтобы перейти на Debian Stretch должным образом на основе ошибок, которые я получаю?